Conus nobilis   Linnaeus,  1758 (Sea Snail)
Organism information awaits expert curation
Class: Gastropoda

Size: 30-71 mm

Color: Ground colour white. Last whorl with a variable yellowish to dark brown pattern of reticulations and spiral bands; variation associated with geographic distribution. Forms with an almost regular network and rather sparse brown spots to blotches intergrade with forms with sparsely interrupted to continuous brown spiral bands separating 3-4 zones where white tents concentrate, at base, centre and below shoulder. Brown areas with prominent spiral rows of alternating darker brown and white, mainly axial dashes and dots. White markings range from very small tents to small blotches and are consistently edged with darker brown toward the outer lip. Base pale violet. Larval shell pale pink, darker pink posteriorly. Early teleoconch sutural ramps pink to orange. Late sutural ramps with yellowish to dark brown radial streaks and blotches coalescing with last whorl pattern and containing fine darker radial lines. Aperture white, suffused with pale violet or pale brown.

Moderately small to moderately large, moderately solid to solid; specimens of C. n. victor smaller than those of other subspecies. Last whorl conical, occasionally narrowly conical or approaching conoid-cylindrical; outline slightly convex at adapical fourth, straight below. Shoulder carinate. Spire low, outline variably concave to slightly sigmoid; apex may project from an otherwise almost flat spire. Larval shell of about 2 whorls; maximum diameter about 0.7-0.8 mm. Later postnuclear whorls carinate. Teleoconch sutural ramps flat, slightly concave in later whorls, with pronounced axial threads; 5 increasing to 10-14 equidistant and evenly fine spiral grooves on later ramps. Last whorl with variably spaced weak spiral grooves on basal third, separating ribs near anterior end and ribbons above.

Synonym (s)

Common Name (s)
• Noble Cone
Economic Importance and Threats

Habitat:  Sandy


• Andaman and Nicobar Islands, Andaman (Lat: 10) (Long: 93) INDIA
• Andaman and Nicobar Islands, Andamans INDIA

Literature Source(s)
  • Subba Rao, NV (2003) Indian seashells Records of the Zoological Survey of India ZSI, Kolkata (Part 1) 416 pp Available at - NCL, Pune
  • Tikadar, BK; Daniel, A and Subbarao, NV (1986) Sea shore animals of Andaman and Nicobar Islands The Director, ZSI, Kolkatta 188 Available at - ZSI, Pune
  • Apte,D (1998) The book of Indian shells Oxford University Press 115
  • (2001) Invertebrate zoology collections Available at -
  • Subba Rao, NV and Dey, A (2000) Catalogue of marine molluscs of Andaman and Nicobar Islands Occasional paper no 187 Records of the Zoological Survey of India ZSI 1-323 Available at - NCL, Pune
  • OBIS Indo-Pacific molluscan database Available at -
  • Kohn, AJ The Conus Biodiversity website Available at -
  • Washington state University Tri-Cities Available at -

Page last updated on:2012-10-09

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